So a friend of mine uses the Promo Nakoruru, and in every match he uses the

R Commit: After your opponent readies 1 or more non-character cards, commit 1 card in your opponent's staging area.

during my ready phase to commit my character.

Then the question comes up. This happened during my Ready Phase... so do I just ready the card again?

Does every card only ready once during the Ready Phase? Does the reaction take place during the Ready Phase or does it happen just after? Do all the foundations ready simultaneously or does a player choose the order he readies the cards in his staging area?

I'll probably feel stupid once I get an answer, but this has been bugging me for awhile now.

Each card only readies once during the Ready Phase, and they all ready simultaneously.

The reaction itself takes place immediately after the opposing player readies any card, no matter what Phase it's in.

This is why Naks is so annoying.

Stamp for MegaGeese. All your cards are readied simultaneously and you don't get to do it again.